<!DOCTYPE html>
<html lang="zh" dir="ltr" class="client-nojs">
<head>
<title>C++20</title>
<meta charset="UTF-8">
<meta name="generator" content="MediaWiki 1.21.2">
<link rel="shortcut icon" href="../../common/favicon.ico">
<link rel="stylesheet" href="../../common/ext.css">
<meta name="ResourceLoaderDynamicStyles" content="">
<link rel="stylesheet" href="../../common/site_modules.css">
<style>a:lang(ar),a:lang(ckb),a:lang(fa),a:lang(kk-arab),a:lang(mzn),a:lang(ps),a:lang(ur){text-decoration:none}#toc{display:none}.editsection{display:none}
/* cache key: mwiki1-mwiki_zh_:resourceloader:filter:minify-css:7:15cea3ec788a65b5187d4018eed543bf */</style>

<script src="../../common/startup_scripts.js"></script>
<script>if(window.mw){
mw.config.set({"wgCanonicalNamespace":"","wgCanonicalSpecialPageName":false,"wgNamespaceNumber":0,"wgPageName":"cpp/20","wgTitle":"cpp/20","wgCurRevisionId":64195,"wgArticleId":12584,"wgIsArticle":true,"wgAction":"view","wgUserName":null,"wgUserGroups":["*"],"wgCategories":[],"wgBreakFrames":false,"wgPageContentLanguage":"zh","wgSeparatorTransformTable":["",""],"wgDigitTransformTable":["",""],"wgDefaultDateFormat":"zh","wgMonthNames":["","1月","2月","3月","4月","5月","6月","7月","8月","9月","10月","11月","12月"],"wgMonthNamesShort":["","1月","2月","3月","4月","5月","6月","7月","8月","9月","10月","11月","12月"],"wgRelevantPageName":"cpp/20","wgUserVariant":"zh","wgRestrictionEdit":[],"wgRestrictionMove":[]});
}</script><script>if(window.mw){
mw.loader.implement("user.options",function(){mw.user.options.set({"ccmeonemails":0,"cols":80,"date":"default","diffonly":0,"disablemail":0,"disablesuggest":0,"editfont":"default","editondblclick":0,"editsection":0,"editsectiononrightclick":0,"enotifminoredits":0,"enotifrevealaddr":0,"enotifusertalkpages":1,"enotifwatchlistpages":0,"extendwatchlist":0,"externaldiff":0,"externaleditor":0,"fancysig":0,"forceeditsummary":0,"gender":"unknown","hideminor":0,"hidepatrolled":0,"imagesize":2,"justify":0,"math":1,"minordefault":0,"newpageshidepatrolled":0,"nocache":0,"noconvertlink":0,"norollbackdiff":0,"numberheadings":0,"previewonfirst":0,"previewontop":1,"quickbar":5,"rcdays":7,"rclimit":50,"rememberpassword":0,"rows":25,"searchlimit":20,"showhiddencats":0,"showjumplinks":1,"shownumberswatching":1,"showtoc":0,"showtoolbar":1,"skin":"cppreference2","stubthreshold":0,"thumbsize":2,"underline":2,"uselivepreview":0,"usenewrc":0,"watchcreations":0,"watchdefault":0,"watchdeletion":0,
"watchlistdays":3,"watchlisthideanons":0,"watchlisthidebots":0,"watchlisthideliu":0,"watchlisthideminor":0,"watchlisthideown":0,"watchlisthidepatrolled":0,"watchmoves":0,"wllimit":250,"variant":"zh","language":"zh","searchNs0":true,"searchNs1":false,"searchNs2":false,"searchNs3":false,"searchNs4":false,"searchNs5":false,"searchNs6":false,"searchNs7":false,"searchNs8":false,"searchNs9":false,"searchNs10":false,"searchNs11":false,"searchNs12":false,"searchNs13":false,"searchNs14":false,"searchNs15":false,"gadget-MathJax":1,"gadget-ColiruCompiler":1});;},{},{});mw.loader.implement("user.tokens",function(){mw.user.tokens.set({"editToken":"+\\","patrolToken":false,"watchToken":false});;},{},{});
/* cache key: mwiki1-mwiki_zh_:resourceloader:filter:minify-js:7:258d7cd6aa9aa67dee25e01fb6a9e505 */
}</script>
<script>if(window.mw){
mw.loader.load(["mediawiki.page.startup","mediawiki.legacy.wikibits","mediawiki.legacy.ajax"]);
}</script>
<style type="text/css">/*<![CDATA[*/
.source-cpp {line-height: normal;}
.source-cpp li, .source-cpp pre {
	line-height: normal; border: 0px none white;
}
/**
 * GeSHi Dynamically Generated Stylesheet
 * --------------------------------------
 * Dynamically generated stylesheet for cpp
 * CSS class: source-cpp, CSS id: 
 * GeSHi (C) 2004 - 2007 Nigel McNie, 2007 - 2008 Benny Baumann
 * (http://qbnz.com/highlighter/ and http://geshi.org/)
 * --------------------------------------
 */
.cpp.source-cpp .de1, .cpp.source-cpp .de2 {font: normal normal 1em/1.2em monospace; margin:0; padding:0; background:none; vertical-align:top;}
.cpp.source-cpp  {font-family:monospace;}
.cpp.source-cpp .imp {font-weight: bold; color: red;}
.cpp.source-cpp li, .cpp.source-cpp .li1 {font-weight: normal; vertical-align:top;}
.cpp.source-cpp .ln {width:1px;text-align:right;margin:0;padding:0 2px;vertical-align:top;}
.cpp.source-cpp .li2 {font-weight: bold; vertical-align:top;}
.cpp.source-cpp .kw1 {color: #0000dd;}
.cpp.source-cpp .kw2 {color: #0000ff;}
.cpp.source-cpp .kw3 {color: #0000dd;}
.cpp.source-cpp .kw4 {color: #0000ff;}
.cpp.source-cpp .co1 {color: #909090;}
.cpp.source-cpp .co2 {color: #339900;}
.cpp.source-cpp .coMULTI {color: #ff0000; font-style: italic;}
.cpp.source-cpp .es0 {color: #008000; font-weight: bold;}
.cpp.source-cpp .es1 {color: #008000; font-weight: bold;}
.cpp.source-cpp .es2 {color: #008000; font-weight: bold;}
.cpp.source-cpp .es3 {color: #008000; font-weight: bold;}
.cpp.source-cpp .es4 {color: #008000; font-weight: bold;}
.cpp.source-cpp .es5 {color: #008000; font-weight: bold;}
.cpp.source-cpp .br0 {color: #008000;}
.cpp.source-cpp .sy0 {color: #008000;}
.cpp.source-cpp .sy1 {color: #000080;}
.cpp.source-cpp .sy2 {color: #000040;}
.cpp.source-cpp .sy3 {color: #000040;}
.cpp.source-cpp .sy4 {color: #008080;}
.cpp.source-cpp .st0 {color: #008000;}
.cpp.source-cpp .nu0 {color: #000080;}
.cpp.source-cpp .nu6 {color: #000080;}
.cpp.source-cpp .nu8 {color: #000080;}
.cpp.source-cpp .nu12 {color: #000080;}
.cpp.source-cpp .nu16 {color:#000080;}
.cpp.source-cpp .nu17 {color:#000080;}
.cpp.source-cpp .nu18 {color:#000080;}
.cpp.source-cpp .nu19 {color:#000080;}
.cpp.source-cpp .ln-xtra, .cpp.source-cpp li.ln-xtra, .cpp.source-cpp div.ln-xtra {background-color: #ffc;}
.cpp.source-cpp span.xtra { display:block; }

/*]]>*/
</style><!--[if lt IE 7]><style type="text/css">body{behavior:url("/mwiki/skins/cppreference2/csshover.min.htc")}</style><![endif]--></head>
<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-cpp_20 skin-cppreference2 action-view cpp-navbar">
        <!-- header -->
        <!-- /header -->
        <!-- content -->
<div id="cpp-content-base">
            <div id="content">
                <a id="top"></a>
                <div id="mw-js-message" style="display:none;"></div>
                                <!-- firstHeading -->
<h1 id="firstHeading" class="firstHeading">C++20</h1>
                <!-- /firstHeading -->
                <!-- bodyContent -->
                <div id="bodyContent">
                                        <!-- tagline -->
                    <div id="siteSub">来自cppreference.com</div>
                    <!-- /tagline -->
                                        <!-- subtitle -->
                    <div id="contentSub"><span class="subpages">&lt; <a href="../cpp.html" title="cpp">cpp</a></span></div>
                    <!-- /subtitle -->
                                                            <!-- bodycontent -->
                    <div id="mw-content-text" lang="zh" dir="ltr" class="mw-content-ltr"><div class="t-navbar" style=""><div class="t-navbar-sep"> </div><div class="t-navbar-head"><a href="../cpp.html" title="cpp"> C++</a><div class="t-navbar-menu"><div><div><table class="t-nv-begin" cellpadding="0" style="line-height:1.1em;">
<tr class="t-nv"><td colspan="5"> <a href="language.html" title="cpp/language">语言</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="header.html" title="cpp/header">标准库头文件</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="freestanding.html" title="cpp/freestanding"> 自立与有宿主实现</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="named_req.html" title="cpp/named req">具名要求</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="utility.html#.E8.AF.AD.E8.A8.80.E6.94.AF.E6.8C.81" title="cpp/utility">语言支持库</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="concepts.html" title="cpp/concepts">概念库</a> <span class="t-mark-rev t-since-cxx20">(C++20)</span> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="error.html" title="cpp/error">诊断库</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="utility.html" title="cpp/utility">工具库</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="string.html" title="cpp/string">字符串库</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="https://zh.cppreference.com/w/cpp/container" title="cpp/container">容器库</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="iterator.html" title="cpp/iterator">迭代器库</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="ranges.html" title="cpp/ranges"> 范围库</a> <span class="t-mark-rev t-since-cxx20">(C++20)</span> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="algorithm.html" title="cpp/algorithm">算法库</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="numeric.html" title="cpp/numeric">数值库</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="io.html" title="cpp/io">输入/输出库</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="locale.html" title="cpp/locale">本地化库</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="regex.html" title="cpp/regex">正则表达式库</a> <span class="t-mark-rev t-since-cxx11">(C++11)</span> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="atomic.html" title="cpp/atomic">原子操作库</a> <span class="t-mark-rev t-since-cxx11">(C++11)</span> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="thread.html" title="cpp/thread">线程支持库</a> <span class="t-mark-rev t-since-cxx11">(C++11)</span> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="filesystem.html" title="cpp/filesystem">文件系统库</a> <span class="t-mark-rev t-since-cxx17">(C++17)</span> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="experimental.html" title="cpp/experimental">技术规范</a> </td></tr>
</table></div><div></div></div></div></div><div class="t-navbar-sep"> </div><div class="t-navbar-head">历史版本<div class="t-navbar-menu"><div><div><table class="t-nv-begin" cellpadding="0" style="line-height:1.1em;">
<tr class="t-nv"><td colspan="5"> C++98 </td></tr>
<tr class="t-nv"><td colspan="5"> C++03 </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/11&amp;action=edit&amp;redlink=1" class="new" title="cpp/11（页面不存在）"> C++11</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/14&amp;action=edit&amp;redlink=1" class="new" title="cpp/14（页面不存在）"> C++14</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="17.html" title="cpp/17"> C++17</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <strong class="selflink"> C++20</strong> </td></tr>
</table></div><div></div></div></div></div><div class="t-navbar-sep"> </div></div>
<p>C++ 标准的下一轮主要修订
</p><p>以下特性即将被合入 C++20 中：
</p>
<ol><li> 从 <a href="language/coroutines.html" title="cpp/language/coroutines">协程</a>, <a href="language/modules.html" title="cpp/language/modules">模块</a>, <a href="language/constraints.html" title="cpp/language/constraints">约束与概念</a>, abbreviated function templates 技术规范中,
</li><li> 从 <a href="ranges.html" title="cpp/ranges">范围</a>, <a href="experimental/lib_extensions_2.html" title="cpp/experimental/lib extensions 2">统一容器擦除</a> (std::erase/std::erase_if) 技术规范中
</li></ol>
<h2><span class="mw-headline" id=".E6.96.B0.E7.9A.84.E8.AF.AD.E8.A8.80.E7.89.B9.E6.80.A7"> 新的语言特性 </span></h2>
<ul><li> <a href="feature_test.html" title="cpp/feature test"><tt>功能特性测试</tt></a>
</li><li> <a href="language/operator_comparison.html#Three-way_comparison" title="cpp/language/operator comparison"><tt>三路比较</tt></a> 运算符 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="sy1">&lt;=&gt;</span></span></span> 和 <a href="language/default_comparisons.html" title="cpp/language/default comparisons"><tt><span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy1">==</span><span class="br0">(</span><span class="br0">)</span> <span class="sy1">=</span> <span class="kw1">default</span></span></span></tt></a>
</li><li> <a href="language/aggregate_initialization.html" title="cpp/language/aggregate initialization"><tt>指派初始化器</tt></a>
</li><li> <a href="language/range-for.html" title="cpp/language/range-for"><tt>基于范围的 for 循环</tt></a> 中的初始化语句和初始化器
</li><li> <a href="keyword/char8_t.html" title="cpp/keyword/char8 t"><tt>char8_t</tt></a>
</li><li> <code>[[<a href="language/attributes/no_unique_address.html" title="cpp/language/attributes/no unique address">no_unique_address</a>]]</code>
</li><li> <code>[[<a href="language/attributes/likely.html" title="cpp/language/attributes/likely">likely</a>]]</code>
</li><li> <code>[[<a href="language/attributes/likely.html" title="cpp/language/attributes/likely">unlikely</a>]]</code>
</li><li> <a href="language/lambda.html#Lambda_capture" title="cpp/language/lambda"><tt>lambda 捕获</tt></a> 中的包展开
</li><li> 取消了在多种上下文语境中，使用 <code>typename</code> 关键字以消除类型歧义的要求
</li><li> <a href="language/consteval.html" title="cpp/language/consteval"><tt>consteval</tt></a>, <a href="language/constinit.html" title="cpp/language/constinit"><tt>constinit</tt></a>
</li><li> 更宽松的 constexpr 要求
</li><li> signed integers are 2's complement
</li><li> 使用圆括号的<a href="language/aggregate_initialization.html" title="cpp/language/aggregate initialization"><tt>聚合初始化</tt></a>
</li><li> <a href="language/new.html" title="cpp/language/new"><tt>array new</tt></a> 可推导数组长度
</li><li> <a href="language/coroutines.html" title="cpp/language/coroutines"><tt>协程</tt></a>
</li><li> 模块
</li><li> <a href="language/constraints.html" title="cpp/language/constraints"><tt>概念</tt></a>
</li><li> abbreviated function templates
</li></ul>
<h2><span class="mw-headline" id=".E6.96.B0.E7.9A.84.E5.BA.93.E7.89.B9.E6.80.A7"> 新的库特性 </span></h2>
<h3><span class="mw-headline" id=".E6.96.B0.E7.9A.84.E5.A4.B4.E6.96.87.E4.BB.B6"> 新的头文件 </span></h3>
<ul><li> <a href="header/concepts.html" title="cpp/header/concepts"><tt>&lt;concepts&gt;</tt></a>
</li><li> <a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/coroutine&amp;action=edit&amp;redlink=1" class="new" title="cpp/header/coroutine（页面不存在）"><tt>&lt;coroutine&gt;</tt></a>
</li><li> <a href="header/compare.html" title="cpp/header/compare"><tt>&lt;compare&gt;</tt></a>
</li><li> <a href="header/version.html" title="cpp/header/version"><tt>&lt;version&gt;</tt></a>
</li><li> <a href="header/source_location.html" title="cpp/header/source location"><tt>&lt;source_location&gt;</tt></a>
</li><li> <a href="header/format.html" title="cpp/header/format"><tt>&lt;format&gt;</tt></a>
</li><li> <a href="header/span.html" title="cpp/header/span"><tt>&lt;span&gt;</tt></a>
</li><li> <a href="header/ranges.html" title="cpp/header/ranges"><tt>&lt;ranges&gt;</tt></a>
</li><li> <a href="header/bit.html" title="cpp/header/bit"><tt>&lt;bit&gt;</tt></a>
</li><li> <a href="header/numbers.html" title="cpp/header/numbers"><tt>&lt;numbers&gt;</tt></a>
</li><li> <a href="header/syncstream.html" title="cpp/header/syncstream"><tt>&lt;syncstream&gt;</tt></a>
</li></ul>
<p><a href="thread.html" title="cpp/thread"><tt>线程支持库</tt></a>中：
</p>
<ul><li> <a href="header/stop_token.html" title="cpp/header/stop token"><tt>&lt;stop_token&gt;</tt></a>
</li><li> <a href="header/semaphore.html" title="cpp/header/semaphore"><tt>&lt;semaphore&gt;</tt></a>
</li><li> <a href="header/latch.html" title="cpp/header/latch"><tt>&lt;latch&gt;</tt></a>
</li><li> <a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/barrier&amp;action=edit&amp;redlink=1" class="new" title="cpp/header/barrier（页面不存在）"><tt>&lt;barrier&gt;</tt></a>
</li></ul>
<h3><span class="mw-headline" id=".E5.BA.93.E7.89.B9.E6.80.A7"> 库特性 </span></h3>
<ul><li> <a href="utility/format.html" title="cpp/utility/format"><tt>格式化库</tt></a>
</li><li> <a href="chrono.html#Calendar" title="cpp/chrono">日历</a> 和 <a href="chrono.html#Time_zone" title="cpp/chrono">时区</a> 库
</li><li> <a href="utility/source_location.html" title="cpp/utility/source location"><tt>std::source_location</tt></a>
</li><li> <a href="container/span.html" title="cpp/container/span"><tt>std::span</tt></a>
</li><li> <a href="types/endian.html" title="cpp/types/endian"><tt>std::endian</tt></a>
</li><li> 针对数组的 make_shared 支持
</li><li> <a href="types/remove_cvref.html" title="cpp/types/remove cvref"><tt>std::remove_cvref</tt></a>
</li><li> <a href="memory/to_address.html" title="cpp/memory/to address"><tt>std::to_address</tt></a>
</li><li> 浮点类型和 shared_ptr 的原子对象
</li><li> <a href="experimental/barrier.html" title="cpp/experimental/barrier"><tt>std::barrier</tt></a>, <a href="experimental/latch.html" title="cpp/experimental/latch"><tt>std::latch</tt></a> 和信号量
</li><li> <a href="thread/jthread.html" title="cpp/thread/jthread"><tt>std::jthread</tt></a> 和线程停止类
</li><li> <code>&lt;version&gt;</code>
</li><li> <a href="io/basic_osyncstream.html" title="cpp/io/basic osyncstream"><tt>std::osyncstream</tt></a>
</li><li> <span class="t-lc">std::u8string</span> 和其他 <span class="t-c"><span class="mw-geshi cpp source-cpp">char8_t</span></span> 的使用
</li><li> &lt;algorithm&gt;, &lt;utility&gt;, &lt;complex&gt; 头文件中设施的 constexpr 化
</li><li> std::string(_view)::starts_with 和 ends_with
</li><li> <a href="memory/assume_aligned.html" title="cpp/memory/assume aligned"><tt>assume_aligned</tt></a>
</li><li> <a href="utility/functional/bind_front.html" title="cpp/utility/functional/bind front"><tt>bind_front</tt></a>
</li><li> <a href="string/multibyte/c8rtomb.html" title="cpp/string/multibyte/c8rtomb"><tt>c8rtomb</tt></a>/<a href="string/multibyte/mbrtoc8.html" title="cpp/string/multibyte/mbrtoc8"><tt>mbrtoc8</tt></a>
</li><li> <a href="memory/make_obj_using_allocator.html" title="cpp/memory/make obj using allocator"><tt>make_obj_using_allocator</tt></a> 等
</li><li> <a href="memory/shared_ptr/make_shared.html" title="cpp/memory/shared ptr/make shared"><tt>make_shared_default_init</tt></a>/<a href="memory/unique_ptr/make_unique.html" title="cpp/memory/unique ptr/make unique"><tt>make_unique_default_init</tt></a>
</li><li> unordered_map 等容器中的各种查找方法
</li><li> <span class="t-lc">std::polymoprhic_allocator&lt;&gt;</span> 的全特化
</li><li> <span class="t-lc">std::execution::unseq</span>
</li><li> <span class="t-lc">std::midpoint</span> 和 <span class="t-lc">std::lerp</span>
</li><li> <span class="t-lc">std::ssize</span>. <span class="t-lc">std::is_bounded_array</span>
</li><li> <a href="ranges.html" title="cpp/ranges">Ranges</a>, 统一容器擦除 (std::erase/std::erase_if)
</li><li> <a href="numeric/constants.html" title="cpp/numeric/constants"><tt>数学常数</tt></a>
</li></ul>

<!-- 
NewPP limit report
Preprocessor visited node count: 2082/1000000
Preprocessor generated node count: 3516/1000000
Post‐expand include size: 30661/2097152 bytes
Template argument size: 8200/2097152 bytes
Highest expansion depth: 13/40
Expensive parser function count: 0/100
-->

<!-- Saved in parser cache with key mwiki1-mwiki_zh_:pcache:idhash:12584-0!*!0!!zh!*!zh!* and timestamp 20200215100841 -->
</div>                    <!-- /bodycontent -->
                                        <!-- printfooter -->
                    <div class="printfooter">
                    来自“<a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/20&amp;oldid=64195">https://zh.cppreference.com/mwiki/index.php?title=cpp/20&amp;oldid=64195</a>”                    </div>
                    <!-- /printfooter -->
                                                            <!-- catlinks -->
                    <!-- /catlinks -->
                                                            <div class="visualClear"></div>
                    <!-- debughtml -->
                                        <!-- /debughtml -->
                </div>
                <!-- /bodyContent -->
            </div>
        </div>
        <!-- /content -->
        <!-- footer -->
        <div id="cpp-footer-base" class="noprint">
            <div id="footer">
                        <div id="cpp-navigation">
            <h5>导航</h5>
            <ul><li><a href="https://zh.cppreference.com/w/cpp/20">Online version</a></li><li>Offline version retrieved 2020-03-14 18:00.</li></ul></div>
                        <ul id="footer-info">
                                    <li id="footer-info-lastmod"> 本页面最后修改于2020年1月29日 (星期三) 01:03。</li>
                                    <li id="footer-info-viewcount">此页面已被浏览过737次。</li>
                            </ul>
                    </div>
        </div>
        <!-- /footer -->
        <script>if(window.mw){
mw.loader.state({"site":"loading","user":"missing","user.groups":"ready"});
}</script>
<script src="../../common/skin_scripts.js"></script>
<script>if(window.mw){
mw.loader.load(["mediawiki.action.view.postEdit","mediawiki.user","mediawiki.page.ready","mediawiki.searchSuggest","mediawiki.hidpi","ext.gadget.MathJax","ext.gadget.ColiruCompiler"], null, true);
}</script>
<script src="../../common/site_scripts.js"></script>
<script type="text/javascript">
var _gaq = _gaq || [];
_gaq.push(['_setAccount', 'UA-2828341-1']);
_gaq.push(['_setDomainName', 'cppreference.com']);
_gaq.push(['_trackPageview']);
</script><!-- Served in 0.517 secs. -->
	</body>
<!-- Cached 20200215100841 -->
</html>